Earlier this month, the 23-year-old stars visited Children’s Hospital Los Angeles for a surprise joint performance and a meet-and-greet with patients. In a video of their visit posted on Tuesday, Nick and Demi are seen cheering the kids up by signing autographs and posing for photos.

“I think that it helps the kids feel special,” said child life specialist Lisa Cies. “When they’re in the hospital so much, they think they’re left out from a lot of normal things, whether it’s school, seeing their friends… but they kind of got their own concert here today. So they got to have something that was special for them.”

Nick also played acoustic guitar as Demi sang her hit “Confident,” and she in turn provided backup vocals for Nick on “Jealous.” Brighten up your day by watching the full vid below.

12 BFF MOMENTS THAT PROVE NICK JONAS AND DEMI LOVATO WILL HAVE THE BEST TIME ON TOUR